Bridgeton police charged a 13-year-old student with bringing a knife to school today.BRIDGETON — A Cherry Street School student was arrested this morning after a security guard found him hiding a knife in a stack of books, police said.

The 13-year-old boy, who resides on South Avenue, was arrested shortly before noon. He was charged with possession of a weapon for an unlawful purpose.

The school security guard found the knife while investigating a complaint of a stolen cell phone. The student was observed scrambling near the books as the security guard entered the classroom.

Police were notified of the incident after the security guard found the knife in the books.